Railcar coupler knuckle cores and knuckles produced by said cores
US9533696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2015 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A knuckle may include a throat portion having a throat side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section. The throat portion may also include a tail stop side wall with at least three sections, a first section closest to the knuckle tail, a third section closest to the knuckle pulling face, and a second section between said first and third sections. The wall thickness of said first section may be less than 10% different than the wall thickness of said second section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.